Sonication-Assisted Extraction of Parabens in Environmental Samples

Scientists from INIA (Madrid, Spain) used ultrasonic-assisted extraction followed by liquid chromatography with triple-quadrupole mass spectrometry detection (LC?MS) to analyze paraben compounds in environmental solid samples.

Scientists from INIA (Madrid, Spain) used ultrasonic-assisted extraction followed by liquid chromatography with triple-quadrupole mass spectrometry detection (LC–MS) to analyze paraben compounds in environmental solid samples. The sonication was performed in small glass columns. The samples were subjected to two consecutive 15-min sonication steps with acetonitrile as the extraction solvent. The sample extracts were evaporated under nitrogen and were subsequently analyzed by LC–MS. The technique was found to be suitable for analyzing methyl, ethyl, isopropyl, propyl, benzyl, and butylparaben in solid samples such as soil and sediments at trace levels.